Automatic gun mounting.



A. T. DAWSON L G. T. BUGKHAM.

AUTOMATIC GUN MOUNTING.

APPLICATION FILED FEB. 2o, 1914,.

Patented Sept. 8, 1914.

4 SHBETSv-SHEET l.'

mime?.

A. T. DAWSON L G. T. BUOKHAM.

AUTOMATIC GUN MOUNTING.

APPLICATION FILED PEB. 20, 1914.

L1 1&25'?. Patentef Sept. 8, i914 4 SHEETS-SHEET 2.

A. T. DAWSON L G. T. BUGKHAM.

AUTOMATIC GUN MOUNTING.

APPLICATION FILED PEB. 2o, 1914.

1,1 10,25?, Patented Sept. 8, 1914.

4 SHEETS-SHEET 3.

A. T. DAWSGN @L G. T. BUGKHAM.

AUTOMATIC GUN MOUNTING.

APPLICATION PILEP FEB. 20, 1914. L 10925?, Patente Sept. 8, 1914.

4 SHEETS-SHEET 4.

fiiNiTsn sTlaTus semana. weaver DAWSON .ann lesoneri:

TaTTNT essieu.

THOMAS BTJOKHAN, or LONDON, ENGLAND,

aSsIGNORs To vIok'EBS,LIMITED, or WESTMINSTEB., ENGLAND.

' izw'iroiim:IoGUN MOUNTING.

1?.,3lil25'7.

p Application led February To' itl whom it may concern ""Be' iti" known 'that fwe, ARTHUR TnEvoR and-useful improvementsl 11i/"dr Relating to l Automatic Gun Mountings, ofl which 4the following is a specification.

fThis invention'relates to' aiitomatic gun; mountings and has for its chief object to so construct the mounting -that the gun can at will be converted' from-One for firing at the usual small maximuni'angle of elevation to one capable of being elevated to a high maximum angle for use in firing at acroplanes or'other aerial vessels.

According-'Ito this invention we provide ineens lvvheiebypin the case'of a tripod mounting, the "gun can vbe moved about an approximately vertical axis through an f angle of 180 degrees so that the rear end of ether-with the gun can be moved by hand giujfpgn the' curved guides through large angles of "elevation I ,In order that the said invention may be .clearly understood and"readily carried into f effect, we will describe the same more fully with" reference to the accompanying draw- 14@ in s in which?- lgures 1, 2 and 3 are side elevations showings. tripod mounting constructed in laci'cbordance with our invention the gun be' ing. depicted in different positions relatively to the mounting. Fig. 4L is a rear elevation of Fig. l. Fig. 5 is a side elevation viewed fromthe .opposite side to that of Fig. 3, showing on a larger scale important features of our constructional form of the invention,

` the gun being adjusted to the position shown in Fig. 3 for iii-ing at high angles of elevation. Fig. 6 is a' view similar to Fig. 5 (but with some of the parts omitted) showing the position of the parts when the'gun is in the 5 position illustrated inFig. l. Figs. 7 andS speci'cation of Letters Patent.

hefgun is contiguous to the front legs of 1 ai'np'edso thatthe said top carriage to# Patented septiygglgl.

20, 1914. SerialNO. 819,864.

gare vertical-sections taken on the lines 1-1 and 2-2 of Figs. 5 and 6 respectively. IF1gSL9, 10and 11 are respectively a side elevation, a rear elevation and a plan (the latter with the gun removed). of a pedestal or naval mounting constructed in accordance gwith our invention'.

l -In al1 these figures, A is the gun and A the gun trunnion pin. B is the crosshead in which the gun is mounted yand B the elevating gear for the gun.

Referring more particularly to Figs. l to 8,the frame C that carries the front legs gC, C and the trail C2, is formed with a `curved-guide c disposed in a vertical plane and upon which a sliding plate C3' is capable of moving, the said plate being made inte. gral with the training arc c and with the socket 02 for the training pivot b of the cross-head B in which the gun is trunnioncd. 4The said sliding plate C3 is provided with f an eccentric clamping device c3 for retaining i it in any required position on the guide c.

l The crosshead B instead of being rigidly connected to or made integral with the rearwardly extending arm BX carrying the elevating gear B and engaging with the training arc c', is connected to the said arm vice in such `a manner that relative movement can at will be caused to take place between the crosshead and the lsaid arm. This clamping device may comprise', as shown, a screw threaded stud b2 carried by a socket B2 forming part of the arm B". This stud has a handle b2* by means of which it ca'n be moved into or out ofengagement with the crosshead B.

When the gun is being elevated in the ordinary Way by the elevating gear B the clamping stud b2 is in the engaging position shown in Fig. 8-that is to say the crosshead B and the rearwardly extending arm B arelocked together-training being ei-y fected in the usual manner by moving the said armon its training arc c. When it is desired to ireat high angles of elevation, the clamping stud is moved out of engagement with the crosshead (Fig. 7), the elevating screw is liberated, and the gun and its crosshead are swung re1ativel to the rearwardly rextending arm BX a out .the training' pivot b so that the4 rear of the gun is contiguousv to the front legs C C of the tripod as shown in Figs. 3 and 5. -V The gun through the intervention of a clamping delio raw!! mn thon be elevatori to almost a vertical po sillon (T50) without impediment, the rear of the gnu being then disposed between the front legs ol' the tripod. lt will be obvious lint this high angle of elevation v@mild not be oblninell with the gun in its usuel posh lion, since the reo-.r end of the gun 'would vl'oul the trail C2 ot the tripod. The aforeemnl curved gruinle c hns' un arC-prelernbly somewhat @renter than that of :i Senn-Circle, no that the lrulnlng pivot Z2 een be mljustecl to the if'ertionl position notwithslnnilinfg large variations; in the inclination oit the lround upon which the trigofl reste (nee Fig: 2).

Referring to 9 toll, the porlesstnl D il: provided with u ixeli training pl te Z which is eireulnrin plan, :uni ie adapten to he engaged by detachable eli'pe d carried by n bruelret D which is formed with a. Socket to receive the training pivot al eurrierl bjr the trninine' plate lfhi's brochet l ,lroifirlerl with rtioelly arranged Semi eireulnr guide/S 477x upon which. the top eur-- rieure or eroeehencl l is niounterl, This top enrrinee ie tori-eel to receive the trunnion pin nl. The top infringe also Currie; the usuel elex'nting` screw ll" :and n elzunp 052 Ylor retaining the Vtop Carriage in the reauiirecl position. "'lhis clamp is normally n1 'tlm enN gauging* posi ion. @nl the gun is then, elevated tbe Suid serena Silben it desired to elef vote the gun to hief-` engle the elnnip is rel used nul the top enrringe is Knox/'ell around the guides ZX on the aforesaid bracket D. il Suitable clamp D* niej; be provided :for eooiriereting with the training Socken :incl the pivot di to retain the Agun in :my desired position of training Each of the herein described construetions of Ajun mounting muy be provided with n, cartridge belt box E similar to that eet forth in our applications for British :Hitent No. 3552 of i913 and No. 3750i llfl, ln the construction shown by Figs. il to 'll however the bolt box is shown is being .fixed to the brneket l.,

`Wlnt we elnirn :incl desire to secure by Letters Patent of the United States istl. ln a lrinorl gun mounting., the oom-binntion Vwith the liront ti` "l thereof, the n'nnnber lo which Suid legis and tmil ere eonneetecle the erosehoml in which the gun `is trunnione.) und the member onrrying the elemting gear, oli ineens 'for enabling; lthe erosshend to be moved relatively to snicl second nieinber through un. ongle olf3() degrees to bring the rear end. oil? the gun oontig'uous to the saliti, front legs for enabling` the gun to be elevated through lei-fre angles with the roer enel-foi? the :neelmnisrn easing between the front lees.

Q. ln o tripod gun noourtrng;7 the combination with the iront l e trail and. thereof nnl the easing to Whielr Said legs '1.31 one? :incl trail are connected, of a curved guide on. Said casing, a sliding member mounted on Seid guide, socket forming part of Seial member, e crossliencl in which the gun is trunnionefl, n training pivot on said Cross head, and means for enabling said cross- ',heacl end the gun to be moved about Said pivot through. an angle of l() degrees to bring tie rear enel of the gun contiguous to the Seid Afront legs und thereby enable the ,gun tobe elevated through large angles with the reni' end of the mechanism. casing between the front legs.

3. ln a tripod gun mounting7 the combination with the front legs and the trail thereof unil the eosin to which Suid legs and trail me connected, o a curved gguicle on seid freeing9 a sliding member niountecl on sail Iguide, a training are earriefl bv Seid meinber, n eroselieacl in which the grin is trunnionecl, a rearwardly extenclingmrin engaging with said training are, elevating gear oarifierl by said arm and clamping mee-ns between Suid erossheaol nnfl Snirl arm for at will holding said partsrigid with one another or enablingn the crossheacl to be inoveol in an approximately horizontal through an angle of 1F50 degrees to bring the rear enel of the gun contiguous to the said `front legs and thereby enable the gun to be elevated through large angles with' the rear enfl of the mechanism easing between the iront 4i. ln n tripod gun mounting, the combi-` ber, :1 erosshencl in which the gun is trun` nionefl, n rearwardly extending nrin engaging with seid training are, a training pivot on said erosslieacl disposed in Seid socket,4

elevating geur carried by said erin and clamping ineens between said erosshead and Suid nrrn for at will holding said parts rigid with one Aanother or enablingY the crosshenrl to be moved about said training pivot through angle of 180 degrees to bringthe rear end of the gun contiguous to the said front legs and thereby enable the gun to be elevated iluougfn large angles, with the rear end or" the mechanism easing between .the front legs.

5. lin a tripod gun mounting', the combination with the :front legs and the trail thereof and the Casingto which seid legs :intl trail are connected, of n curved guide on snicl easing, :i slicling niernloel mounted on said guide, :L training are carried by Selci member, u socket forming part oi Said niember erossheud in which the gun is trim nioned, a rearwardly extending arm enge@ ing with seid training area a training pivot plane t'xrough large angles with the rear end of the mechamsm casing between hfa.l front legs. In esimony whereof We ax our signa-'- on sa cyosshead dis osef in said sockes, l elevating gear cared y said arm, am clamp ing stew carried by said arm for engagement with the crosshead, said screw when 5 in the disengaged position enabling h@ tues in th@ yresem@ of two witnesses.

cfosshead and tue un to be move about ARTE TREVOR DAWSUN. he minng pvot ftnzough an angle o 180 GEORGE THMAS BUCKHAML degrees to bring the rear end of the gunf con- Witnesses: tiguous to the {Tont egs of the tripod and HENRY Kms,

m thereby enabe the gun to be elevated JNO. R. CASWEL, 

